Date: Fri, 24 Apr 2015 00:48:57 +0200 From: Harald Becker <ralda@....de> To: musl@...ts.openwall.com CC: Rich Felker <dalias@...c.org> Subject: Re: Still not possible to send mail to domain libc.org On 24.04.2015 00:33, Rich Felker wrote: > On Thu, Apr 23, 2015 at 11:55:30PM +0200, Harald Becker wrote: >> Hi Rich, >> >> extending my search on qhe net I found the following: >> >> All of the senders experiencing the bounced messages mentioning >> cname lookup failure appear to be running the qmail mail server >> software. > > Again there are no CNAMEs involved. I think several authors use the term CNAME when they see a name return like brightrain, which is not the sense of DNS CNAME :( >> Qmail, if not using a third party patch that was written in the late >> 90’s, has an issue sending to domains whose name servers respond to >> DNS queries of type “ANY” with more than 512 bytes of data; that is >> a bug in qmail and the author has never fixed it because he wants >> you to use his DNS server software which also eliminates the issue >> in a different way. > > Responses larger than 512 bytes are not supported over UDP and are > rarely used. I saw some replies close to that long but none of them > had the TC (truncation) bit set, so I don't think that's your issue > either. So what did you change, as it now works? Harald
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.